:root {
  --green: #1f9d63;
  --green-dark: #157a4b;
  --ink: #1b2420;
  --muted: #5b6b63;
  --surface: #f4f8f5;
  --card: #ffffff;
  --line: #dbe6df;
}

@media (prefers-color-scheme: dark) {
  :root {
    --green: #4cc58b;
    --green-dark: #7ad9aa;
    --ink: #e5efe9;
    --muted: #a3b5ab;
    --surface: #111915;
    --card: #18231d;
    --line: #2a3a31;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--green-dark); }

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.brand img { border-radius: 10px; }

.switch button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 14px;
  font: inherit;
  cursor: pointer;
}

.switch button[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 16px 16px;
  display: grid;
  gap: 24px;
  align-items: center;
}

@media (min-width: 760px) {
  .hero { grid-template-columns: 1.1fr 0.9fr; padding-top: 56px; }
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.15;
  margin: 0 0 12px;
}

.hero p { color: var(--muted); font-size: 1.1rem; margin: 0 0 24px; }

.hero img { width: 100%; height: auto; border-radius: 24px; }

.cta {
  display: inline-block;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 999px;
}

.features {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
}

.feature h2 { font-size: 1.05rem; margin: 8px 0 4px; }
.feature p { margin: 0; color: var(--muted); }
.feature .emoji { font-size: 1.6rem; }

.story {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 48px;
  display: grid;
  gap: 16px;
}

@media (min-width: 760px) {
  .story { grid-template-columns: 1fr 1fr; }
}

.story h2 { font-size: 1.25rem; }
.story p { margin: 0 0 12px; }
.story .sign { color: var(--green-dark); font-weight: 600; text-align: end; }
.support { background: color-mix(in srgb, var(--green) 12%, var(--card)); }

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
}

/* Privacy policy */
.doc { max-width: 760px; margin: 0 auto; padding: 8px 16px 64px; }
.doc section { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 8px 24px 16px; margin-top: 24px; }
.doc h2 { margin-top: 16px; }
.doc h3 { margin: 20px 0 4px; font-size: 1.05rem; }
.langs { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); }
.langs a { white-space: nowrap; }

[hidden] { display: none !important; }